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3113412220 = 225155670611
BaseRepresentation
bin1011100110010010…
…1110011001111100
322000222102201122201
42321210232121330
522334013142340
61232535121244
7140103365362
oct27144563174
98028381581
103113412220
111358492756
1272a813224
133a8042a69
142176c9632
151334e779a
hexb992e67c

3113412220 has 12 divisors (see below), whose sum is σ = 6538165704. Its totient is φ = 1245364880.

The previous prime is 3113412157. The next prime is 3113412221. The reversal of 3113412220 is 222143113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113412221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77835286 + ... + 77835325.

It is an arithmetic number, because the mean of its divisors is an integer number (544847142).

Almost surely, 23113412220 is an apocalyptic number.

It is an amenable number.

3113412220 is an abundant number, since it is smaller than the sum of its proper divisors (3424753484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3113412220 is a wasteful number, since it uses less digits than its factorization.

3113412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155670620 (or 155670618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3113412220 is about 55797.9589232438. The cubic root of 3113412220 is about 1460.1995442531.

Adding to 3113412220 its reverse (222143113), we get a palindrome (3335555333).

The spelling of 3113412220 in words is "three billion, one hundred thirteen million, four hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 155670611 311341222 622682444 778353055 1556706110 3113412220